Latex caution: To prevent possible choking hazard, test strength before each use by pulling the spout in all directions. Discontinue use if it becomes sticky, enlarged, cracked, torn, or shows other signs of excessive wear. Silicone caution: To prevent possible choking hazard, test strength before each use by pulling the spout in all directions. Any tear can lead to the separation of pieces. Discontinue use if any tear or crack appears. Do not attempt to enlarge the hole with a pin or any other sharp object, since this may cause tearing.